---

REMOVAL AND INSTALLATION

* Remove and assemble the marked parts in each cylinder unit.
Pre-removal Operation

• Timing Belt Upper Cover Removal (Refer to ).
Post-installation Operation

• Timing Belt Upper Cover Installation (Refer to ).
• Drive Belt Tension Check (Refer to ).
• Valve Clearance Check and Adjustment (Refer to ).

Required Special Tools:
• MB990767: Front Hub and Flange Yoke Holder
• MD998713: Camshaft Oil Seal Installer
• MD998719: Pin
• MD998772: Valve Spring Compressor
• MB991999: Valve Stem Seal Installer

---